Apparatus for manufacturing expanded metal.



` A H. SALMON.

APPARATUS FOR MANUFACTURING EXPANDED METAL.

Wfl/Lesse.;

' APPLICATION FILED JUNE l5. 1912.

Patented Nov. 5, 1912.

3 SHEETS-SHEBT l.

Fig. Z5.

H. SALMON.'

APPARATUS POR MANUFACTURING BXPANDED METAL. APPLICATION I IL'ED .TUNE15. 1912.

10043541 Patented Nov.5,1912.

3 SHEETS-SHEET 2.

ynessw Jg ffl/vena?" .7i/3. A l v j H. SALMON. APPARATUS FORMANUFACTURING BXPANDED METAL.

APPLICATION FILED JUNE 15. 1912.

1,043,541 Patented Nov. 5, 1912.

3 SHEETS--SHEET 3.

. Qum

w/@ZL' l it lnto parallel stripsv f of the `sheet.

- the axes of such Wheels being above and the other below the Umrnn-sTATns PATENT omiten.- f

HARRY'SALMON. or w/nsrninsriz'n.,nnsnann. Assrcrnonao .THE

,coi/transe.V LIMITED. or wnsrivrgtnsrnn..ENGLANDt APPARATUS ronMANUrAcTUnrNG nXPANnEn METAL.. l

To all whom lit may concern' 'new and useful Improvements' in Apparatusyfor lllanut'acturlng Expanded Metal, of which the following is aspecification.

According to this invention the sheet is first slit in the ordinary waythus dividing connected by junctions of uncut metal. The slit sheet isthen passed through rolls b v which the strips are turned in pairs inthesaine direction to-an angle to the plane of the sheet antlat the Sametime holes are formed at the two edges Finally the sheet lthus preparediseXpanded bymeans of a" pair of wheels revolving in opposite directionsand provided with teeth which enter.the holes, arranged one plane oflthe l sheet.

'allel strips but it will be -ing-for driving the shows the expandedSheet and The drawings Show a vmachine arranged to deal with a slitsheet consisting of eight parunderstood that the machine'can be readil"radapted to `deal with anywidth or thickness of sheet. j

Figure 1 shows the slit sheet. Fig. 2 is aplan, of the rolls and wheelsand Fig. 3 is a sectional elevation of Fig. Q, the gearrolls and wheelsis well understood and is not shown. Figs'ft and 5 are end elevations ofthe expanding wheels showing the positions of the sheet at thecommencement and termination of the ex pending operation. Fig. 6 is alongitudinal section-showing to a'larger scale half of each of thepreparing rolls. Figs. 7 and S'are elevations of the outer and innerportions ofthe rolls (Fig. 6). Fig. -9 is a section similar to Fig. 6 onthe lines 9-9, Figs. '7 andl 8. Fig. 10 is a. section of one of theteeth to a larger scale. Figs. 11 and 125ire side elevations of thecames operatinglthe teeth. Fig. l?) shows the sheet after it has passedthrough the preparing rolls and before it has been expanded. Fig. 14 isa section on the line 14-14, Fig. 13. Fig. 15 Fig. 16 is a section onthe line 16-|16, Fig. 15.

a are the slittingrolls the details of which are well known and do notrequire any description. Each of the preparing rolls is built up oftourinnerrolls b' l(which are Specication of Letters Patent. Application ledJune 15, 1912. Serial No. 703,950"` Patented Nov. 5, 1912.

l conical in forni asnd 5 at regular yintervals 4to 'receive 4thejunctions fof the slit sheet) and two outer rolls d.

. edges being parallel to their axes. The e'xpanding wheels g haveteethL projecting ,l from their side faces. These teeth are not fixed to,them but pass through them from side to side.

Il v/are springs tending to draw the heads g of the teeth toward thewheels and liz EXPANDED' METAL..

Veo

Ii are stationary cam surfaces which force the I j teeth outward. i Thedrawings for simplicity I single tooth on each of the Wheels but it will,l be understood that they have teeth all around them at regularintervals.

The method of operation is as follows I A sheet of metal is passedthrough the rolls a and is slitas shown at Fig, 1 being divided intoparallel strips j connected by 7: and Z, there'being three junctions if:in a Irow and four junctions l. The slit sheet travels .on tow thepreparing rolls and in passing through them the junctions k are receivedin the notches c and are not materiall;7 acted onv but the two vstrips jat the sides of these junctions are'bent by the rolls f (I upward anddownward out of the plane of the sheet without being turned. The Iljunctions 'Z are acted on by the conical part ot' the rolls bl and theplane of the sheet as shown at Fig. 9. The sheet thuv guide m. Fig. 3,on to the wheels g, the teeth Ilv of which enter the holes formed asabove described between the `outer strips and the junctions y' the 1fromthe wheels' b v the. cams 12,2 and ha. When the teeth are respectivelyvertically above and below the axes of their wheels they come to theends of the cams and are suddenly withdrawn by their springs thusfreeing the expandcdsheet. By varying the length of the cams so that theteeth are withdrawn somewhat-sooner the amount of expansion `can beregulated.

'hat I claim ist* l. The combination of means for slitting only show ajunctions are turned to an angle tol prepared passes through theteethbeing forced out away plane of the sheet \vithout"turfi'i'ng them,a"

pair of wheels revolvingin opposite directions, and teeth on the Wheelsengaging with 'the outer strips.'

2. The combination-'of means for slitting a sheet of'metal, means forturning the inside strips in pairs to an angle to the plane of thesheet,means for bending the outer strips upward and' downward from the facesof ,the Wheels engaging with the outer strips.

' 3. A roll 'for preparing 'a 'slit sheet for l expanding consisting ofa number of conical rolls each'provided with notches' at regularintervals around its circumference and having at each end a corrugatedroll having edge parallel to its axis in combination wlth -a cooperatingroll and means for operating l said rolls. '20

4. Apparatus for expanding a slit sheet of metal consisting of thecombination. of a pair of wheels lying in different planes each havingteeth pro]ecting from the side which faces the other wheel, springstend- 25 ing to draw the teeth toward the Wheels and cams forcing theteeth away from the wheels.

` vHARRY SALMON.

Witnesses:

T. HARRY TILLY, J r., JAS. T. NICHOLSON.

